William M. Greathouse pastored for 23 years. He has served as dean of religion and college president of Trevecca Nazarene University; president of Nazarene Theological Seminary; and general superintendent for the Church of the Nazarene. He is the author of several books, including The Fullness of the Spirit, Love Made Perfect, and Wholeness in Christ George Lyons is a professor of New Testament at Northwest Nazarene University. He has taught at Olivet Nazarene University and serves as a visiting professor Nazarene colleges and universities around the world